Sharpening device.



C. H. BRENNER. SHARPENING DYEVICE. APPLICATION man FEB. 7. 1916.

1 1 98,41 3 Patented Sept. 19, 1916.

CHBRENNER wow CHARLES H. BRENNER, 01? PORT HURON, MICHIGAN.

SHARPENING DEVICE.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application filed February 7, 1916. Serial No. 76,838.

To all whom it may concern Be it known that 1, CHARLES H. BRENNER, acitizen of the United States, residing at Port Huron, in the county ofSt. Clair and State of Michigan, have invented certain new and usefulImprovements in Sharpening Devices, of which'the following is aspecification, reference being had to the accompanying drawings.

This invention relates to certain improvements in sharpening devices andit is an objcct of the invention to provide a novel and improved deviceof this general character which may be readily applied in operativeposition, and whereby the grinding or sharpening member may be rotatedwith convenience and facility.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improvedsharpening device whereby certain important advantages are attained andthe device is rendered simpler, less expensive and otherwise moreconvenient and advantageous for use, all as will be hereinafter morefully set forth.

The novel features. of the invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, 1 will nowproceed to describe the same with reference to the accompanyingdrawings, wherein Figure 1 is an elevational view with a portion brokenaway of a sharpening device constructed in accordance with an embodimentof my invention; Fig. 2 is an enlarged detail sectional view with partsin elevation illustrating the mounting of the supporting upright for thegrinding member as herein embodied; and Fig. 3 is a fragmentary Viewpartly in section and partly in elevation illustrating a furtherembodiment of my in vention.

As disclosed in the accompanying drawings, 1 denotes an arm or platehaving one end provided with the upstanding extension or arm 2,terminating in the bearing 3 arranged at right angles to the extensionor arm 2, and through which is disposed the shaft 4. The outer end ofthe shaft 4 has aflixed thereto a disk 5 provided with an operatingmember 6 in order that requisite axial rotation may be imparted to theshaft 4. The inner end of the shaft 4 has aflixed thereto a bevel-gear 7in mesh with the bevel-gear 8 loosely mounted upon the upper extremityof the standard 9 extending from the plate 1 intermediate the lengththereof, said arm being arranged substantially parallel with theextension or arm 2. The standard 9 adjacent its connected end isprovided with the laterally directed arm or extension 10 overlying thefree end portion of the plate 1 and coacting therewith to afiord a awwhereby the device may be suitably secured in applied position, and tofurther assure the maintenance of the device in applied position, I havethreaded through the free end portion of the plate 1, the screw 11affording an effective clamping means, the outer end of said screw 11being provided with a winged head 12 for a purpose which is believed tobe self-evident.

As is particularly disclosed in Fig. 2, it is r to be observed that theupper or outer extremity of the standard 9 is provided with a reducedextension 14 which has in threaded engagement therewith the cones 15which coact with the centrally reduced portions 16 formed in theopposite faces of the gear 8 to afford suitable race-ways for theantifriction members 17 herein disclosed as comprising sphericalmembers. It is also to be observed that the bore or axial opening 18 ofthe gear 8 has a diameter in excess of the diameter of the extension 14,whereby it will be perceived that the gear 8 is capable of free rotationabout the extension 14. It

will also be observed that the outer end of the extension 14 hascoacting therewith the looking nut 19 for. a purpose which is bein orderto detachably connect the upright 20 to the upper face of the gear 8,and it is to be noted that said upright 20 is arranged at the axis ofthe gear 8 and has its inner end recessed, as at 23, so that noobstruction will be offered by the outer end of the reduced extension 14of the standard 9 and its concomitant parts.

The upper end of the upright 20 has secured thereto through the mediumof the key 24, the sleeve 25 depending from the circular plate 26.Threaded through the plate 26 adjacent the periphery thereof andpreferably in equi-distantly spaced relation, are the upstanding pins 27adapted to be received within suitable recesses 28 formed in the underface of a whet stone or grinding member 29 adapted to be engaged by thetool to be sharpened, it being self-evident that the requisite rotationwill be imparted to the member 29 by rotating the disk 8.

In order that my device may be employed with the upright 20 in ahorizontal position, I provide the arm or extension 10 with thelaterally directed spaced lugs or arms 30 arranged in parallelism andextending substantially in the same general direction as the standard 9and away from the plate 1, said lugs or arms 30 affording therebetwcen ajaw to receive the marginal portion by a suitable support, and threadedthrough one of the arms 30 is the clamping screw 31 coacting with saidsupport in amanner which is believed to be clearly apparent to thoseskilled in the art to which my invention appertains.

In the form of invention disclosed in Fig. 3, the upright 20 has itsouter end provided with the recess 3:2 adapted to receive the member orbody 33 which is held Within the recess 32 through the medium of theclamping screws 3% threaded through the walls of the opening 32 andcoacting with the memher or body 33 in a conventional manner.

The outer end of the member or body 33 is provided with the reduced andthreaded extension 35 adapted to be directed through a suitable o ieningformed at the axial center of an emery wheel or other grinding member 36indicated by dotted lines, and coa-cting with said threaded extension 35is the clamping nut or bur 37 which serves to effectively clamp thegrinding member in. applied position, as is thought to be clearlydisclosed in Fig. 3 of the accompanying drawings.

From the foregoing description, it is thought to be obvious that asharpening device constructed in accordance with my invention is of anextremely simple and comparatively inexpensive nature and isparticularly well adapted for use by reason of the convenience andfacility with which it may be assembled, and it will also be obviousthat my invention is susceptible of some change and modification withoutmaterial departure from the principles and spirit thereof and for thisreason I do not wish to be understood as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice.

I claim:

1. A sharpener comprising a plate havin an upstanding arm, a shaftrotatably supported by said arm, a standard carried by the plateintermediate its length, an ar carried by said standard overlying thefree end of the plate to afford a jaw, a clamping member threadedthrough the plate at a point intermediate the arm of the standard, anupright rotatably supported by the free extremity of the standard, aplate carried by the outer extremity of the upright, pins extendingbeyond the outer face of the plate, a grinding member positioned uponthe plate and provided. with recesses to receive the extended portionsof the pins of the plate and an operative connection between the shaftand the upright.

2. A sharpener comprising a plate having an upstanding arm, a shaftrotatably supported by said arm, a standard carried by the plateintermediate its length, an arm carried by said standard overlying thefree end of the plate to afford a jaw, a clamping member threadedthrough the plate at a point intermediate the arm of the standard, agear rotatably supported by the upper end of the standard, an operativeconnection between the gear and -the shaft, an upright affixed to thegear positioned at the axis of the gear, a plate secured to the outerend of the upright, and a grinding member supported by the plate.

3. A sharpener comprising a plate having an upstanding arm, a shaftrotatably supported by said arm, a standard carried by the plateintermediate its length, an arm carried by said standard overlying thefree end of the plate to afl'ord a jaw, a clamping member threadedthrough the plate at a point intermediate the arm of the standard, anupright rotatably supported by the free extremity of the standard, agrinding member carried by the upright, an operative connection betweenthe shaft and the upright, spaced arms extending from the second namedarm, and a clamping member threaded through one of said last named arms.

In testimony whereof I hereunto atlix my signature in the presence oftwo witnesses.

CHARLES H. BRENNER.

Witnesses:

ALEX. O. MCMANN, Axons G. MAoKAY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. G.

